Warning: You might not have realized how much you've missed Rory's snarky pessimism, until you watch this clip from "Let's Kill Hitler," Doctor Who's midseason premiere. Also, you may be left with gnawing questions that will eat you alive for the next eight days.

Like, they're trapped inside a giant robot what? And what the blazes are those robot jellyfish anyway?

Here's another clip, that will open up a whole slew of bewildering questions as well: